In ZIP Extractor, click "Create New ZIP" and from there you can add files and folders to be compressed, including files from Google Drive.On a Chromebook running Chrome OS, choose one more files in the Files app and then select “Zip selection.”.
Common files that can be included in a ZIP archive include PDFs, images, videos, and Microsoft Office documents including Microsoft Word, Microsoft Excel, and Microsoft PowerPoint (*.DOCX, *.XLSX, *.PPTX file formats). ZIP files can contain multiple files of different types.
ZIP files are common across a variety of business areas, including industries ranging from medical, insurance, legal, mortgage, banking and financial, scientific, equities and trading, SEO (Search Engine Optimization), and education industries. This makes the ZIP file format convenient for sharing and distributing groups of files. When this is done, the path and folder information of the file tree is preserved inside the ZIP file. In addition to compression, ZIP files are archives that can group together multiple files and folders. In the cloud, ZIP files are commonly found as both Gmail attachments, as well as files stored in Google Drive or other cloud-based storage systems such as Dropbox and Microsoft OneDrive. Today, the ZIP file format remains in heavy use in the internet and in the cloud, with billions of such files in circulation. Once received, the ZIP file would then be opened and its contents decompressed ("unzipped") onto a user's computer. It also allowed for multiple files and folders to be grouped together ("zipped") and transferred as a single ZIP file. Using ZIP compression regularly saved minutes or even hours off of file transfers. In this era, file transfers occurred using MODEMs and transfer speeds were very limited. The ZIP file format dates to the late 1980s when it received heavy use in pre-internet-era Bulletin Board Systems, or BBSes. The ZIP file format is very popular for efficiently storing and transferring groups of files in a variety of business and personal applications. Return dcc.send_file(zip_tf.name,filename="mydfs.ZIP files are compressed archives that group together one or more files into a single file, compressing the files (making them smaller) that are contained inside. Zf = zipfile.ZipFile(zip_tf, mode='w', compression=zipfile.ZIP_DEFLATED) Zip_tf = tempfile.NamedTemporaryFile(delete=False, suffix='.zip') # add dataframes to zip file using temporary filesĭf_temp_file = tempfile.NamedTemporaryFile(delete=False, suffix='.csv') Zip_file.writestr(file.split('/'), file_obj.read())
# aws.download is an internal function to download the file from my AWS S3 instance With zipfile.ZipFile(zip_buffer, "w", zipfile.ZIP_DEFLATED, False) as zip_file: # All files passed in via url string are of the format file_įiles.append(('file_' + str(file)))
Here is the code that handles the downloading of these files from my AWS instance, creating a zip to contain them, and then downloading to the user. with the button to invoke the download looks similar to the following: NOTE: This entire process must be achieved within 30 seconds if hosting on Heroku due to the web process time limit unless you implement this asynchronously. In this example, the individual excel files reside in my AWS instance. Here is the way I download my zip of excel files, with the zip file being created on-the-fly.